Tower uninterruptible power supply



FIG. 1 is a perspective view of a tower uninterruptible power supply, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a right side view thereof.

The ornamental design that is claimed is shown in solid lines in the drawings. The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a tower uninterruptible power supply, as shown and described. 